{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-house-w02jksed","versions":[{"created_at":"2026-06-10T22:52:03Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy72816480→quote21362937 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"ba69036b735fd926f84320c51a8aa08441e7170c6ac5227e39d258b3940228e0","version":26},{"created_at":"2026-06-10T13:11:38Z","element_count":77,"note":"backfill: 延床=居室床スラブ実面積87.5㎡(基礎/屋外/ロフト除外)。設備数量/コスト過大の是正","saved_by":"mcp","sha256":"98a194aeaf498b958603c17fa0719e363361d8ed11502fa338bd946d1765e24c","version":11},{"created_at":"2026-06-10T08:22:35Z","element_count":85,"note":"5軸GA polish 60->98 by M5 (autonomous)","saved_by":"mcp","sha256":"b47224fc50ebffbc429b6bcfc88475959979dc745829ca7ea2ca85c9c4f94df0","version":2}]}